[tip: timers/core] clocksource/drivers/samsung_pwm: Constify source IO memory

[tip-bot2 for Krzysztof Kozlowski]

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     b4318ce203db8f8b7004e7ab82a957f894660c88
Gitweb:        https://git.kernel.org/tip/b4318ce203db8f8b7004e7ab82a957f894660c88
Author:        Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
AuthorDate:    Thu, 06 May 2021 16:27:28 -04:00
Committer:     Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitterDate: Fri, 04 Jun 2021 10:12:13 +02:00

clocksource/drivers/samsung_pwm: Constify source IO memory

The 'source_reg' IO memory is only read, so the pointer can point to
const for safety.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210506202729.157260-4-krzysztof.kozlowski@xxxxxxxxxxxxx
---
 drivers/clocksource/samsung_pwm_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index 55e2f9f..6e46781 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -61,7 +61,7 @@ EXPORT_SYMBOL(samsung_pwm_lock);
 
 struct samsung_pwm_clocksource {
 	void __iomem *base;
-	void __iomem *source_reg;
+	const void __iomem *source_reg;
 	unsigned int irq[SAMSUNG_PWM_NUM];
 	struct samsung_pwm_variant variant;